+86 15898932201The rise of GNSS monitoring stations is primarily driven by humanity's growing need for managing and early warning of natural disasters and engineering safety hazards.
Geological hazards such as landslides, rockfalls, and debris flows are often accompanied by slow or accelerating surface displacement. Traditional manual monitoring methods (like using total stations) are inefficient, high-risk, and difficult to operate for all-weather monitoring. If these millimeter-level or even centimeter-level displacement changes can be captured with high precision and in real-time, it can buy valuable time for disaster early warning and personnel evacuation.
Especially in areas like mines, slopes, and tailings ponds—where the slope stability of open-pit mines and the safety of tailings dam structures are directly related to lives and property—GNSS monitoring can provide uninterrupted, 24/7 protection for these high-risk areas.
So, what is a GNSS monitoring station?
It is a system that utilizes Global Navigation Satellite Systems (including the US's GPS, Russia's GLONASS, the EU's Galileo, etc.) to perform high-precision differential positioning. By continuously measuring changes in the station's own three-dimensional coordinates (horizontal X, Y, and vertical Z), it enables automated, all-weather, real-time monitoring of displacement, settlement, tilt, and other deformations of the ground surface or structures.
It consists of three parts: the monitoring station (field equipment), data transmission network, and monitoring center (software platform).
It employs differential positioning technology: a reference station is set up in a stable area. This station compares its known precise coordinates with the received satellite signals to calculate error corrections, which are then transmitted to the monitoring stations for correction. This process eliminates common errors (such as satellite clock errors, orbit errors, atmospheric delays, etc.), achieving millimeter-level accuracy.
The platform visualizes the calculated coordinate changes in forms like charts and curves. Multi-level alarm thresholds (e.g., attention, warning, alert) are set. Once the displacement amount or displacement rate exceeds a threshold, alerts are immediately sent to management personnel via SMS, sound, email, etc.
Technical Advantages:
All-weather operation, unaffected by weather (rain, snow, fog), enabling 24/7 continuous monitoring.
Fully automated operation, achieving true real-time monitoring and instant early warning.
Acquires both horizontal displacement and vertical settlement data, providing comprehensive information.
Leveraging modern communication technology, the monitoring center can be located far from the site, enabling unmanned operation.
Works as long as the antenna receives sufficient satellite signals, having lower terrain requirements compared to optical instruments.
Article address：https://www.sqqx.net/en/news/756.html
